Thanks for the comments.
Dwarfs,
Yes they are a pair, but breeding pair would not be the word to describe them. I do not even get wigglers any more. They eat the eggs a day after laying them. That's ok. I would not have the time to raise them anyway.
thebaldranger,
Bare bottom tanks are easier to keep clean for the discus.
mr_miagi32,
The floating plant is Pistia stratiotes, Water lettuce.